Conditions For Tip/Off

The following conditions must be fulfilled before activation of the TIP function in the Cruise Control system's control module will be possible:
Pin A (1): 0 V
Pin B (2): 0 V
Pin C (3): 0 V

The switch should be in the OFF position.

1 Connect the BOB and check that no current (0 V) is present across terminals A, B and C of the Cruise Control connector and a good ground when the TIP/OFF switch is held in the depressed position.






2 Set the switch in the OFF position and measure the resistance across pins 4 and 1, pins 4 and 2, and pins 4 and 3.
If the resistance reading obtained in any measurement is < 1 ohm, install a new switch.
3 If the reading obtained indicates an open circuit, check the wiring for a short circuit to battery positive by taking a voltage reading across:
- Pin A (1) of the Cruise Control connector and a good ground.
- Pin B (2) of the Cruise Control connector and a good ground.
- Pin C (3) of the Cruise Control connector and a good ground.
If any of the readings obtained is about 12 V, check the wiring and rectify the fault.
4 If no fault has been found after carrying out the above checks, continue fault diagnosis as described in "Before Control Module Replacement".